Only having faint positives

Hello,

I got a faint positive on Friday 9/20. I have obsessively tested daily since with all faint lines. They do not seem to be getting darker. Per the app I'm 4 weeks & 3 days today. I'm stressing because we had a miscarriage in April after a faint line. I had a miscarriage in 2007 and a living birth in 2005. I want to make a doctor's appointment for a blood test but we just moved here. So trying to get in quickly will probably be an issue and they'll probably think I'm cray cray. Any thoughts?